DataSource Controls :: How To Convert Sql Query To LINQ

Feb 13, 2010

How can I convert this sql query to LINQ ?

[code]...

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DataSource Controls :: How To Convert Sql Query Into Linq Query

Mar 10, 2010

select Groupid,GroupName,onorusername from palgroup where groupid in (select distinct Groupid

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DataSource Controls :: Convert Linq Query Into IEnumerable DataRows?

May 19, 2010

IEnumerable<DataRow> query = (from obj1 in objeDC.tmpPolicyRenewals.AsEnumerable()
where obj1.AgentCode == "Admin"
select new
{
obj1.Product,
obj1.PolicyNo,
obj1.Insured,
obj1.EffDate,
obj1.ExpDate,
obj1.GrossPrem,
obj1.Status
}) as IEnumerable<DataRow>;

Getting null value. whats error ?

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DataSource Controls :: How To Convert To Linq (vb.net)

Sep 16, 2010

I have an sql statement I want to convert to LINQ (VB.Net).

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DataSource Controls :: Convert SQL To Linq?

Jun 24, 2010

SELECT *
FROM dc.accounts t1
INNER JOIN dc.profiles t2 ON t1.AccountID = t2.AccountID
WHERE EXISTS
(
SELECT *
FROM dc.profileblocks t3
WHERE t3.AccountID = '14' and t1.AccountID = t3.AccountID
)

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DataSource Controls :: Convert Code Of SQL To Linq?

May 14, 2010

I would like to ask the programmers to help me in C# with LINQ to SQL.

I have this code conn.Open();

SqlDataReader dr = DB.ExecSpReader("select AttachmentName from AttachmentTable where TicketId=" + ticketID, param);

while (dr.Read())

{[code]....

and I need to convert it to LINQ SQL.

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DataSource Controls :: Convert ObjectQuery To LINQ?

Mar 1, 2010

I like to think I know my way around eSQL, but I'm pretty ignorant when it comes to LINQ. Can anyone tell me how I would write the following ObjectQuery in LINQ?

[Code]....

There is a many-to-many association between Countries and Sponsorships (a Country may have many Sponsorships, and a Sponsorship may have many Countries). I want to find all Countries related to a specific Sponsorship based on the Sponsorship primary key.

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ADO.NET :: Convert Sql Query In Linq?

Oct 2, 2010

how convert this sql query in linq,

SELECT COUNT(AdvisorID) AS AdvisorRegisterLast2Days FROM ob_Advisor WHERE CONVERT(varchar,CreationDate,101) BETWEEN CONVERT(varchar,DATEADD(day,-4,DATEADD(day,2,GETDATE())),101) AND CONVERT(varchar,GETDATE(),101)

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DataSource Controls :: Convert LINQ Singleresult Set To DataTable?

Jun 10, 2010

I have store procedure which return result set. I have used LINQ datacontext object to get the result set from this store procedure, which returns the result set in IsingleResult format.I bind this IsingleResult to my gridview.

I want to convert this IsingleResult into DataTable format so I can sort the gridview.

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DataSource Controls :: Query Using Linq To Sql?

Jun 25, 2010

Im using Linq to Sql in my asp.net application, but the problem is:I have a query like this:

[Code]....

My query is not returning anything, how do I do to get this?my problem is with this interval I need to have.

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ADO.NET :: How To Convert A Linq Query To A Datatable

Feb 23, 2011

how to convert a linq query to a datatable

this is my query

[Code]....

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DataSource Controls :: Convert Day Of The Year To Date In SQL QUERY?

May 17, 2010

I am using DATAPART(..) function in SQL to query table. Now I have Day of the year which I want to convert to actual date and then return Here is the query

[Code]....

For the moment I am returning day of the year, but I want to return date (current year can be assumed). Therefore I have two pieces of information1) day of the year2) year it selfExample day of the year = 125 and year = 2010 How to convert this to date in SQL

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DataSource Controls :: One Linq Query With Two Db Connection?

May 31, 2010

I want to use from two db connection in one linq query

My sample is:

int a=1;
if(a==1)
DataClasses1DataContext1 db = new DataClasses1DataContext1();
else
DataClasses1DataContext2 db = new DataClasses1DataContext2();
var q =
from c
in db.F_Groups
select c;

In this code a=1 so db connection is DataClasses1DataContext1

I want if a=2 then db connection = DataClasses1DataContext2

but this code is error.

db connections is completely same but in two deferent class a db connection is sql and another is oracle

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DataSource Controls :: Linq To Sql Query / Zip Codes?

Feb 18, 2010

Im doing thing profile, zip code thing on my site. One table has a list of zipcodes and in the other is a profile and there they keep what zip code they entered. I already have the radius code but idk how to get a list of all the profiles in a radius.I'm going to store the zip codes that come back from the zip code table in a arraylist and put it in a session state so i don't have to keep getting the same thing over and over again. The problem is i don't know how to write the linq to sql query to take the arraylist of zip codes and look up all the users that have that as there set zip code in there profile.

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DataSource Controls :: Return First Value From A Linq Query?

Mar 12, 2010

Is there a way opf getting the first value from a linq query so for example

[Code]....

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DataSource Controls :: Add A New Item To A LINQ Query?

May 13, 2010

So I'm trying to add a single item to a query I wrote. The query is then pass to the e.Result of a LinqDataSource_Selecting event. This datasource is being used by a dropdown list and label in a listview.

I am trying to add a "New" field to the end of the list.

Currently I have this working, but it seems like a really messy solution. First I make a class with the fields I need:

[Code]....

Then I build the query:

[Code]....

Then a second list and query with the new value:

[Code]....

Finally, I union the two and set the e.Result:

[Code]....

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DataSource Controls :: Retrieve Value From LINQ Query?

Mar 20, 2010

I need to know how to extract the result of the attempted LINQ query below and set it equal to the strFile variable.Everything Intellisensed OK here but ine 5 shows a syntax error at the parenthesis.

[Code]....

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DataSource Controls :: Linq Query With OrElse?

Apr 7, 2010

I'm having a problem with a Linq query where is executing the second half of an OrElse even though the first half evaluates to true.

[Code]....

When Manufacturer is null, I get a NullReferenceException. The "Manufacturer.Trim()" should never be executed, because the first half of the OrElse evaluates to true. Just to test it out, I also tried this:

[Code]....

This actually works fine... Manufacturer.Trim() is never executed, and I get no error. Why is the Trim() statement being executed in the first case? If Manufacturer is null, then it shouldn't be.

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DataSource Controls :: How To Convert Textbox To Datetime In A Parameterized Query

Jun 29, 2010

I succes with this code

if (InitDateStart.Text != "" && InitDateEnd.Text != "")
{
strWhere += "And ((Convert(DateTime, InitDate, 105) >= Convert(DateTime,'" + InitDateStart.Text + "', 105)) And (Convert(DateTime, InitDate, 105) <= DateAdd(day, 1, Convert(DateTime,'" + InitDateEnd.Text + "', 105))))";

}
How do I do this code as a parameterized query ??I tried this but with no succes.I got some strange result by this

strWhere += "And Convert(varchar(10), ServiceInitDate, 105) >= @InitDate............. ";
GridDatasource.SelectCommand += strWhere; [code]...

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DataSource Controls :: How To Convert, The Code To Query A SQL Database Using A DSN-less Connection

Sep 10, 2010

How do we convert, the following code to query a SQL database with ASP using a DSN-less connection

[Code]....

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DataSource Controls :: Random Results From A LINQ To SQL Query?

Jan 23, 2010

I have this LINQ query:

var agnts = (from a in db.agents select new { a.userid, a.name }).Take(10);

How can I get randomly get 10 records from my agents table?

I have tried:

agnts = agnts.OrderBy(n => Guid.NewGuid());

but this doesn't seem to do anything.

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DataSource Controls :: SQL Query Re-Write In Linq To Entity?

Jan 26, 2010

Need to figure out the correct way to do a simple SUM function in Linq, but also manipulate one of the feilds coming back by doing a Substring on it, here is the original SQL query:

[Code]....

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DataSource Controls :: LINQ And C# - Accessing More Then 2 Tables In A Query

Apr 23, 2010

As the title sugests, I am missing a (basic?) concept as I teach myself asp.net, linq, and C#. It has been awhile since I've done anything object oriented, so I don't know how much that is impacting this gap in my understanding. Anyhow, here is what I am trying to do. I have three SQL Server tables: PERSON, POSITION, AREA. There is a 1 to many relationship between PERSON and POSITION, and a 1 to 1 relationship between POSITION and AREA. Given the following code I verify who the person is who has logged into the browser:

[Code]....

I want to be able to return all of the AREAs the person is able to access, based on the position they currently hold. I am able to easily do this in a SQL Server query, and I am sure I can do this with a SQL stored procedure once I pass the EMPLOYEE_ID to the procedure. However, I would rather do this in the page_load event, and load the returned results into gridview1 for the viewer. The issue I am running into is in building the LINQ query. When I try to build it, I can only get access to two of the three tables, depending on which table I select with db. Is it possible to access all three tables in the same query?

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DataSource Controls :: Finding A Field In A Linq Query

Mar 1, 2010

I have a field name as a string and i want to find it in a linq query. so something like this

[Code]....

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DataSource Controls :: Linq To Sql Query / Could Not Translate Expression?

Mar 26, 2010

I have the following LINQ query which works correctly:

[Code]....

The following query, however causes an error:

[Code]....

"Could not translate expression 'Table(t_f2f_event).Where(e => ((e.EVT_START_DATE > Invoke(value(System.Func`1[System.Nullable`1[System.DateTime]]))) && (e.EVT_START_DATE < Invoke(value(System.Func`1[System.Nullable`1[System.DateTime]])))))' into SQL
and could not treat it as a local expression."

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